wilson wright



(No Model.)

J. W. WRIGHT.

SASH FASTENER.

No. 469,313. Patented'Peb. 23 1892.

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INVENTOR WITNESSES: #1 WI ATTORNEY us "cams PKTEIIS cm. worm-mum,wnsmmmn, n. c.

UNITED STATES PATENT OFFICE.

JOHN \VILSON WVRIGIIT, OF NElV YORK, Y.

SASH FASTENE R.

SPECIFICATION forming part of Letters Patent No. 469,313, dated February23, 1892.

Application filed $eptember 15, 1891. Serial No. 405,808. (No model.) i

To all whom it may concern:

Be it known that I, J OHN WILSON WRIGHT, a citizen of the UnitedStates,residing at New York, in the county and State of New York, have inventeda new and useful'Improvement in Sash-Locks, of which the followingis afull and true description, enabling others skilled in the art to whichit pertains to' make the same.

My invention relates to sashlocks, such as are used to secure windows,and more especially such looks as are intended to secure window-sashesat any fixed or desired point.

It consists of the device illustrated in the accompanying drawings, inwhich like letters refer to like parts in each.

Figure 1 is a perspective view of the case. Fig. 2 is a perspective viewof the lock with one side of case removed, dotted lines showing theposition of parts when unlocked, black lines showing the position ofparts when locked. Fig. 3 is a perspective of parts.

In constructing my device a case A is provided, preferably made of thinsheet metal. One side of this, as at A, is an open space. The case isfurther provided with perforations to admit of the operation of thepinions of the various parts. These are marked in Fig. 1 A and A andalso a key-hole A The keyhole A may be dispensed with, and a knob with award on it be made a permanent part of the device when it is used inpublic conveyances.

Nithin the case and pinioned at A is located the spur-wheel B, the spursof which B extend through the "opening in the case A. These spurs engagein indentations or punctures C, adapted to receive them, in the metallicstrip O. The spur-wheel B is controlled in its rotations by the pawl D,which is pinioned in the case at A This pawl has a spring E, whichthrows it in place. On the upper part of the pawl D is a notch D.Pinioned on the same center as the spur-wheel loosely, so as to operateindependently of the spur-wheel, is the arm F. This arm has a lug F,which falls into the notch D of the pawl D when the device is locked andeffectually prevents the pawlD from leaving its seat between the spurs Bof the spurwheel B. The arm F has a spring G to as sist it in itsoperations. It has also a curved end F The arm F is located in front ofthe spur-wheel and the pawl, as shown.

The operation of this device is as follows: The case A is mortised intothe sash or attached in any other manner, so that the spurs of thespur-wheel will enter the holes in the strip 0, which is fastened bymeans of screws O or in any other manner in the groove where the sashoperates when mortised in and on the jamb when. the device is attachedto the outside of the sash. When it is desired to raise the window, thekey X is placed into the key-hole and turned so asto bring the ward incontact with the curved end of the arm F and the pawl D. A-slightpressure overcomes the resistance of the springs E and G, and the armand pawl are both raised at the same time. This will allow of thespurwheel turning, and the window-sash may be raised or lowered. Whenany desired point in the raising or lowering is reached, the key iswithdrawn, the pawl D falls into the space between the spurs B of thespur-wheel B at the same time the arm F falls down, and the lug F fallsinto the notch D of the pawl D, thus locking the pawl in its positionand preventing the spur-wheel from revolving. As the spurs are engagedin the holes 0 of the strip 0, the locking of the device, as aforesaid,prevents the sash from moving until the key is applied and the arm andpawl raised.

It is obvious that a knob with a Ward could be 'used instead of a key,and in public cars or other conveyances this method might be preferred.

\Vhat I claim as new is 1. The combination, in a sash-lock, of the caseA, key-hole A, spur-wheel B, springs E and G, pawl D, and arm F, havinglug F, as herein described and set forth.

2. The combination, in a sash-lock, of the spur-wheel B, adapted tooperate in the perforated rack-bar C, pawl D, having notch D, and arm F,having lug F, adapted to engage in notch D, as herein described and setforth.

JOHN W'ILSON WRIGHT.

Witnesses:

ALFRED BEATTIE, Jr-., M. L. BAUM.

